Description

1)a-Pyrrolidone / *-pyrrolidone a-Pyrrolidone is an important chemical material, widely being used in making pharmaceuticals, textiles, dyes, coating and cosmetics, such as Pharmacy, nylon*4, pvp, artificial blood plasma etc.. Physical properties: Molecular formula:C4H7NO Molecular weight:*5.*0 Structural formula: Properties: colorless transparent liquid , Melting point *4.6°C, insoluble in petroleum ether but soluble in water, alcohol, chloroform, benzene, ethyl acetate and carbon disulfide. Specifications Superior grade: Index Top grade Purity(Wt%) ≥*9.0 Moisture(Wt%) ≤0.3 Density p*5g/ml 1.****1.**5 Colority HaZen ≤*5 Refractive index N *0 D 1.****1.**0 Safety properties:This is an organic toxic product, No. of risk classes:****2. Package & storage: Standard iron barrel, Net weight:**0kg±0.*5. The product should be sealed and stored in shelter for moistureproof, fireproof,handling gently avoiding leakage. 2) N-methyl**-pyrrolidone (NMP) It is superior quality solvent, widely used in petrochemical, pesticide,pharmaceuticals, electrolic materials,etc.Such as acetylene concentration, syn gas desulphurization, lubricant refining and antifreezes, olefins extractant, solvent of unsolvable engineering plastic, herbicide, insulator, integrated circuit making, recovery of PVC trail gas, purification agent, dye additive, disperasnt, etc.. Physical properties: Molecular formula:C5H9NO Molecular weight:*9.**4 Structural formula: Properties: colorless transparent liquid , Boiling point **4°C, Flash point *1°C Specifications Superior grade: Index Super grade Top grade Purity(Wt%) ≥*9.8 ≥*9.5 Moisture(Wt%) ≤0.*5 ≤0.1 Density p*0g/ml 1.****1.**5 1.****1.**5 Colority HaZen ≤*0 ≤*5 Refractive index N *0 D 1.****1.**2 1.****1.**2 Safety properties:The product is feeble toxic, allowable limit concentration in air is **0 ppm. Package & storage: Standard iron barrel, Net weight:**0kg±0.*5. The product should be sealed and stored in shelter for moisture proof, fireproof,handling gently avoiding leakage.